So, 5 is intered.
Line 1: num will recieve the integer 5
Line 2: Blank
Line 3: num will recieve 1, wich is the remainer of the division of 5 by 4.
Line 4: will return true, since num is indeed equal to 1.
Line 5: Will print "A"
Line 6: Will return false
Line 7: Gets jumped
Line 8: Will return false
Line 9: Gets jumped
Line 10: Will return false
Line 11: Gets jumped
Line 12: Will return false
Line 13: Gets jumped
The only OUTPUT is "A".